METHOD FOR FORMATION OF MULTI-LAYERED COATING FILM AND COATED ARTICLE

PROBLEM TO BE SOLVED: To provide a method for forming a metallic multi-layered coating film having high luster, high hardness and high adhesion on a metallic material (MM) and a coated article having a coating film produced by the method. SOLUTION: The method for forming the metallic multi-layered coating film comprises the steps of: applying a base coat paint (BC) on the surface of the MM; applying a clear coat paint (CC) on the BC; and baking the BC and the CC simultaneously, wherein the BC comprises a melamine resin (MR), a hydroxyl-containing acrylic resin (AR) having a hydroxyl value of 50 to 100 mg KOH/g and a TG of 50 to 100°C, a cellulose resin (CR) and/or a microgel (MG), and a photoluminescent pigment, in which the ratio of the amount of the AR to the amount of the MR is 50:50 to 90:10 in terms of mass-based solid content and the ratio of the amount of the CR and/or the MG to the total solid content of the AR and the MR is 1 to 20 mass% in terms of solid content, and wherein the CC comprises an MR and an AR having a hydroxyl value of 50 to 100 mg KOH/g and a TG of 70 to 100°C, in which the ratio of the amount of the AR to the amount of the MR is 50:50 to 90:10 in terms of mass-based solid content. COPYRIGHT: (C)2009,JPO&INPIT